Brake-block.



AIENIED JAN. 1.7, 1905.

E'. W. SARGENT.

BRAKE BLOCK.

[.LJPLl'oATIoN Mmm APR. 6, 1904.

-Lll Hl I l No. VBBG. PATENTED JAN. 17, 1905. l?. W. SARGENT BRAKEBLOCK.

APPLIQA'MOH FILED APE. 1904.

: SHEETE-SHEET 2.

` No. 780,066. PATENTED JAN. 1'7, 1905.

P. W. SARGENT.

BRAKE BLOCK.

APPLIOATION FILED APR. 6, 1904.

4 SHEETS-SHEET 3.

PATENTED JAN. 7, 1905.

No. '780,066l

F. W. SARGBNT.

BRAKE BLOCK.

APPLICATION FILED APR. s, w04.

4 SHEETS-SHEET 4,

fac/@wf llnrrn Smyrne :Patented January 1'7, 1905.

PATnNr OFFICE.

FITZ WILLIAM SARGENT, OF MAHVVAH, NEI/V JERSEY, ASSIGNOR TO AMERICANBRAKE SHOE & FOUNDRY COMPANY, OF JERSEY CITY,

JERSEY, A CORPORATION OF NEW JERSEY.

BRAKE-BLOCK..

SPECIFICATION forming part of Letters Patent No. 780,066, dated January17, 1905.

Application led April 6, 1904:. Serial No. 201,921.

To LM w/z/ort it 'n1/rtg] concern:

Beit known that I, FITZ WILLIAM SARGENT, a citizen oi' the UnitedStates, residing at Mahwah, in the county of Bergen and State oi' NewJersey, have invented certain new and useful Improvements inBrake-Blocks, et' which the following is a speciiication.

My invention relates towheel brakes for railway cars and the like, andparticularly to 1o the blocks upon the ends oi the brake beam or leverfor frictionally engaging the wheel. The objects of the invention are,to do away with the separate brake head and combine the wearingshoe withdevices attachable directly I5 to the brake support; to provide acombined brake bleek and wearing' sole with superior means for attachingit te the brake support; to provide a ductile metal brake bleek with acast metal wearing sole thereon; to provide a 2O superior support for acast Wearing sole on the brake block, and to generally improve andcheapen the structure and efficiency of railway brakes. These objects,together with other advantages which will hereinafter ap- 2 5 pear, Iattain by means of the construction illustrated in preferred forms inthe accompanying drawings, wherein-- Figure 1 is a side elevation of acombined brake head and shoe, or brake block, contain- 30 ing one formot' my improvements;

Figure 2 is a top plan view ot' the same brake block;

Figure 3 is a cross section on the line (3) oi Figure 2, alsoillustrating the attachment of 35 the brake beam to the block;

Figures 4:, 5, and 6 are central vertical cross sections showingmodifications of forming the attaching ilanges for the brake beam and ofembedding the same in the cast wearing shoe;

Figures 7, 8, and 9 show respectively, a side elevation, a plan andvertical cross section of a modification of the block in which the backand attaching' lianges are made ei' two sepa rate pieces;

Figures 10, and l2 show plan views of blanks from which a diiierent termof attaching wing is made, especially for driver shoes, and Figure l1 isa central. vertical cross section e'lI such a shoe supplied with theplates shown in Figures 10 and A 2;

Figures 13 and 14 are respectively, a side elevation and a top planview, ot' a driver shoe made with a duetile or malleable backing andattaching means made from a single plate; and

Figures 15 and 16 are sections respectively on lines (15) and (1G) inFigure 13.

It is the present custom to use on the end of the brake beam a separatehead for supporting the brake shoe, and the brake shoe is attachedthereto by means of various lugs and pins and other connections. Theordinary cast brake shoes which are attached to the brake head havebecome displaced in heavy traiiic to some extent on account of the greatdanger et breakage et' the cast shoe and the dithculty of properlyattaching it to the brake head without danger oit cracking or breakingotl' the lugs in driving the keys. And in rough usage the cast shoefrequently fails by reason oi' the weak attaching means to the 70 head.Also there is considerable diiiiculty experienced in fitting the shoeproperly to the head' and in preventing the rattling or looseness of thesame which ,is both inconvenient and dangerous. ln order to overcomethese dii-liculties and others, I provide a wearing block with a backingwhich is provided with wings for attaching directly to the brake leveror beam itself, thus doing away with the separate head.

Thus in Figure I, the body portion or wearingsole et the shoe isprovided with a backing 21 of malleable or ductile metal having a baseportion :lor backing the shoe and two wings QQ'which have eyes forengagement with the brake beam, the plate 21 being punched with openings24 and lugs 24s in order to allow anchorage in the cast metal and firmlyattaching the backing to the wearing block itself. The backing mayconveniently be forged of one piece and the cut-out portions 24u punchedand turned as shown in Figure 2 and buried in the cast metal foradditional security, the ends of the plate being piece, or in two pieces27a as in Figure 5, the

lower ends in each case beingiianged at 28 and buried in the cast metalfor secure anchorage therein. Also it will be seen that the flanges 27may be bare as in Figure 4 or may be covered by the cast metal in wholeor in part as shown in Figure 5, for additional strength. In the form ofFigure 2, where the cast' metal is not run up to support the wings 22 1may use a spool 25 to separate the two upon the brake beam,foradditional security and stiffness.

The form of the back as shown in Figures 7 and 8 is made from two plateswith their ends buried in the cast wearing sole as shown in Figure 9,and conveniently spaced apart by the spool 25. For additional securitythe lip 3221 may be punched out of the side and buried in the castmetal, as shown in Figure 9.

Figure 10, 11, and 12 show a convenient mode of making the backing for aheavy driver shoe, the same being' made from two plates 34 and 35 andthe larger plate 85 being extended over the rim portion of the shoe andbeing provided with openings 36 which the cast metal flows through forthorough anchorage.

The two wings 37 for attaching to the lever may either be left free ormay be strengthcned by filling in the cast metal 38 as shown in Figure11. It will also be evident Vthat punched out anchorage lugs such asindicated in Figure 7 may be used with these plates.

In Figures 13 to 15 is shown a different form of driver shoe in whichthe backing is made from a single plate. The plate 39 has the variouslugs 40, 41, 42, and 42 punched out and turned up therefrom as shown inFigure 14, and is also provided with central openings and openings 43over the flange portion, in order to secure additional anchorage in thesole cast thereon. I'preferably arrange the molds in the casting of thesole upon the back so as to cover the attaching flange portions 4() and41 with the cast metal as shown at 45 in Figure 15, thus making a moresecure anchorage and stiffening the backing. In the small side lugs 42,42, I pursue the same process or more conveniently, as shown in Figure16, may simply use a spool or spacer 44 between the two parts.

It will be seen from these illustrative constructions that I haveprovided a wearing brake shoe with a malleable or ductile metal backingwhich is anchored in the metal of the shoe in casting and makespractically an integral piece, doing away with the brake head entirely,and providing attaching means which are absolutelyY safe and may be madein any form desired to fit any kind of brake beam with perfect ease.Various other advantages of the construction will readily occur to thosefamiliar with the art. And it is of course understood that in the claimsthe word beam is the equivalent of the lever used in the case of enginedrivers.

Having thus described my invention andY illustrated its use, what Iclaim as new, and desire to secure by Letters Patent, is the following:

1. A brake block having meansfor attachment directly to the brake leveror beam and a wearing sole directly cast thereon, substantially asdescribed.

2. A brake block comprising a cast metal wearing sole and a ductilemetal attaching flange for engagement directly with the brake beam,anchored in the cast metal, substantially as described.

3. A combined brake head and shoe consisting of a cast wearing sole andsupporting means for the brake beam anchored therein, substantially asdescribed.

4. The combination in a brake shoe of malleable metal attaching flangesto engage the brake beam and a cast wearing sole rigidly attachedthereto. A

5. In a brake shoe a cast wearing sole and a ductile metal strengtheningback for the slice, said back having integral therewith means for directattachment to the brake beam.

6. A brake shoe having a reinforcement of wrought or ductile metalembedded therein in the act of casting, and said backing havingperforated wings to engage directly with the brake beam.

7. A brake shoe having a cast wearing sole and a wrought or ductilemetal backing ernbedded therein in casting, said backing being parallelwith the wearing face of the shoe and having integral therewithattaching wings to engage directly with the brake beam, substantially asdescribed.

8. A brake block comprising a cast wearingsole and a ductile metalengaging device for the brake beam embedded therein and comprising asingle plate forged to shape.

IOO

IOS

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9. In a brake block an attaching means for the brake beam comprising asingle plate oi ductile metal folded upon itself and anchored in thebody of the wearing sole, substantially as described.

l0. In a brake block, a cast wearing sole and a forged metal backinghaving attaching means for the brake beam, comprising two fianges spacedapart and having their bottoms

